---
title: "SIP and Voice Services"
ocid: "ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "WEST SUSSEX COUNTY COUNCIL"
published: "2026-05-19"
---

# SIP and Voice Services

Buyer: WEST SUSSEX COUNTY COUNCIL  
Current stage: Award  
OCID: ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446.json)

## Summary

The procurement process for "SIP and Voice Services" was orchestrated by West Sussex County Council, located in Chichester, United Kingdom. This project falls under the industry category of software-related services. The competitive process concluded in the award stage, with the contract being awarded on 24th September 2025 to TRUSTMARQUE SOLUTIONS LTD. The procurement method employed was selective, specifically a call-off from a framework agreement. The contract spans from 1st October 2025 to 30th September 2028, with a total contract value of £418,909. The tender was specifically not aimed at SMEs or VCSEs.

This tender presents significant opportunities for businesses offering software-related services, particularly large-scale organisations with the capability to handle extensive SIP and voice service projects. Companies with excellent frameworks and a proven track record in delivering comprehensive software solutions would be well-suited to engage with this contract. By participating in similar tenders, businesses can expand their public sector portfolio and enhance their market presence within the United Kingdom, particularly in the South East region.

## Notice

SIP and Voice Services

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/3068b0a9-f0ba-40aa-bb33-ed82a5fbf688 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 May 2026 |
| Submission deadline | 17 Sep 2025 |
| Future notice date | Not specified |
| Award date | 23 Sep 2025 |
| Contract period | 30 Sep 2025 - 30 Sep 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £418,909 |
| Lots value | Not specified |
| Awards value | £418,909 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | WEST SUSSEX COUNTY COUNCIL |
| Locality | CHICHESTER |
| Post town | Portsmouth |
| Postcode | PO19 1RQ |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ2 Surrey, East and West Sussex |
| ITL 3 | TLJ27 West Sussex (South West) |
| Local authority | Chichester |
| Electoral ward | Chichester Central |
| Westminster constituency | Chichester |
| Delivery location | TLJ South East (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | TRUSTMARQUE SOLUTIONS |

## CPV Codes

### Divisions

- 72 - IT services: consulting, software development, Internet and support

### Codes

- 72260000 - Software-related services

## Release History

- 19 May 2026 at 15:23 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/3068b0a9-f0ba-40aa-bb33-ed82a5fbf688

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/3068b0a9-f0ba-40aa-bb33-ed82a5fbf688
  19th May 2026 - Awarded contract notice on Contracts Finder

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-304a5848-c948-4b3c-8679-cf8825ad6446.json.